Novy's car veered off the interstate and went down the embankment sometime between 4 a.m. and 5 a.m., police said. Investigators said she may have been trying to get help. The temperature ranged from 17 to 24 degrees at the time.

Several callers to a police information line mentioned seeing a tan motor home with a blue stripe pulling a red Nissan car with tow lights, Sgt. Dan Cisar said. Investigators are trying to locate the driver.